Desde a atualização de 12.04 para 12.10, não consigo me conectar à Internet usando o modem de banda larga móvel Huawei e173. Funcionou anteriormente sem problemas e agora parece ser devidamente reconhecido (pelo menos suas conexões aparecem no applet gerenciador de rede), e depois de selecionar a conexão manualmente, inicia o procedimento de conexão. Após cerca de 20 segundos, volta ao estado desconectado.
Depois de navegar na internet, descobri que o gerenciador de rede está em execução com:
NM_PPP_DEBUG=1 /usr/sbin/NetworkManager --no-daemon
Depois de inserir o modem, recebo:
NetworkManager[507]: <warn> (ttyUSB2): failed to look up interface index
NetworkManager[507]: <info> (ttyUSB2): new GSM/UMTS device (driver: 'option1' ifindex: 0)
NetworkManager[507]: <info> (ttyUSB2): exported as /org/freedesktop/NetworkManager/Devices/2
NetworkManager[507]: <info> (ttyUSB2): now managed
NetworkManager[507]: <info> (ttyUSB2): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
NetworkManager[507]: <info> (ttyUSB2): deactivating device (reason 'managed') [2]
NetworkManager[507]: <info> (ttyUSB2): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
onde "falha ao procurar índice da interface" parece ser suspeito.
Depois de iniciar a conexão:
NetworkManager[507]: <info> Activation (ttyUSB2) starting connection 'Plus - Dostęp standardowy'
NetworkManager[507]: <info> (ttyUSB2): device state change: disconnected -> prepare (reason 'none') [30 40 0]
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) scheduled...
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) started...
NetworkManager[507]: <info> (ttyUSB2): device state change: prepare -> need-auth (reason 'none') [40 60 0]
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) complete.
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) scheduled...
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) started...
NetworkManager[507]: <info> (ttyUSB2): device state change: need-auth -> prepare (reason 'none') [60 40 0]
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) complete.
NetworkManager[507]: <info> WWAN now enabled by management service
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 2 of 5 (Device Configure) scheduled...
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 2 of 5 (Device Configure) starting...
NetworkManager[507]: <info> (ttyUSB2): device state change: prepare -> config (reason 'none') [40 50 0]
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 2 of 5 (Device Configure) successful.
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 3 of 5 (IP Configure Start) scheduled.
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 2 of 5 (Device Configure) complete.
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 3 of 5 (IP Configure Start) started...
NetworkManager[507]: <info> (ttyUSB2): device state change: config -> ip-config (reason 'none') [50 70 0]
NetworkManager[507]: <info> starting PPP connection
NetworkManager[507]: <info> pppd started with pid 663
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 3 of 5 (IP Configure Start) complete.
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 4 of 5 (IPv6 Configure Timeout) started...
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Plugin /usr/lib/pppd/2.4.5/nm-pppd-plugin.so loaded.
** Message: nm-ppp-plugin: (plugin_init): initializing
** Message: nm-ppp-plugin: (nm_phasechange): status 3 / phase 'serial connection'
Removed stale lock on ttyUSB2 (pid 32146)
using channel 23
NetworkManager[507]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
NetworkManager[507]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
NetworkManager[507]: <warn> /sys/devices/virtual/net/ppp0: couldn't determine device driver; ignoring...
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB2
** Message: nm-ppp-plugin: (nm_phasechange): status 5 / phase 'establish'
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
NetworkManager[507]: <warn> pppd timed out or didn't initialize our dbus module
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 4 of 5 (IPv4 Configure Timeout) started...
NetworkManager[507]: <info> (ttyUSB2): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
NetworkManager[507]: <warn> Activation (ttyUSB2) failed for connection 'Plus - Dostęp standardowy'
NetworkManager[507]: <info> Activation (ttyUSB2) Stage 4 of 5 (IPv4 Configure Timeout) complete.
NetworkManager[507]: <info> (ttyUSB2): device state change: failed -> disconnected (reason 'none') [120 30 0]
NetworkManager[507]: <info> (ttyUSB2): deactivating device (reason 'none') [0]
Terminating on signal 15
** Message: nm-ppp-plugin: (nm_phasechange): status 10 / phase 'terminate'
sent [LCP TermReq id=0x2 "User request"]
NetworkManager[507]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
onde repetido:
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x64b4024a> <pcomp> <accomp>]
duram cerca de 20 segundos.
Eu tentei rebaixar o gerenciador de rede, mas falhei devido a muitas dependências.
Alguém pode me indicar uma solução ou dizer o que devo fazer para investigar o problema?
Isso aconteceu devido a bugs (ou bug) no ModemManager 0.6.0.0 que acompanha o Ubuntu 12.10. Você pode remover esta versão do gerenciador de modem e fazer o downgrade para 0.5.2.
Para verificar a versão do gerenciador de modem: dpkg -s modemmanager
faça o download da versão 0.5.2: link 64 --- i386
aqui está um link para o bug com uma correção: link
se você tentar todas as opções para instalar o Huawei E176 no Ubuntu 12.10 e não conseguir. Há explicações sobre este blog, com idéias alternativas para instalar, e se você precisar de suporte, é possível, entre em contato com o blogueiro. O texto está em português, se o tradutor do Google não te ajudar, o criador do blog pode até tentar: link